Home / 1,152,373.44-1,590,128.63-643,097.28

Finding the Fourth Proportional to 1,152,373.44, 1,590,128.63 and 643,097.28

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Solution

The fourth proportional to 1,152,373.44, 1,590,128.63 and 643,097.28 is: 887,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,373.44 : 1,590,128.63 = 643,097.28 : x
  2. Step 2: Convert to fraction form
    1,152,373.44/1,590,128.63 = 643,097.28/x
  3. Step 3: Cross multiply
    1,152,373.44x = 1,590,128.63 × 643,097.28
  4. Step 4: Simplify right side
    1,152,373.44x = 1,022,607,396,803.13
  5. Step 5: Solve for x
    x = 1,022,607,396,803.13/1,152,373.44
  6. Step 6: Final answer
    x = 887,392.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.